5 flashcards
1
Q
osmosis: required practical
A
1.) peel potato
2.) make 3 cylinders of potato
3.) measure the cylinders length, make sure it’s all the same
4.) measure the mass
5.) add 10cm3 of a 0.5 molar solution to first
add 0.25 molar solution to the second tube
add 10cm3 of distilled water to 3rd tube
6.) leave overnight, measure percentage change
2
Q
active transport
A
-moves substances from a more dilute solution to a more concentrated solution
-requires energy from respiration
3
Q
independent variable
A
thing that you change
4
Q
dependant variable
A
affected by the change
5
Q
controlled variable
A
thing that remains the same
